Improvement in sash-holders



R. HOLCROFT. SASH-HOLDER.

Patented May 9,1876.

Unrrnp STATES PATENT Orrxon.

RICHARD HOLOROFT, PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT lN SASH-HOLDERS.

Specification forming part of Letters Patent No. 177,247, dated May 9,1876; application filed March 16, 1876. w

radius will be between the sleeve B and the frame F, thus permitting thesash to be raised without opposition or binding on the part of said cam.The downward movement of the sash, however, will cause said cam to roll,its periphery impinging against the frame F, so that its longer radiusor enlarged part a will become wedged between the sleeve B and the saidframe, thus arresting said downward movement, and holding the sashfixedly in position. a shows a shoulder on the periphery of the cam,adjacent to the handle E. The object ofthis shoulder is toprevent thecam from rolling in such manner as to cause it to wedge, in the mannerdescribed, on the upward motion of the sash D. G shows an elastic strip,of sheet-rubber or equivalent material, let into or affixed to the frameF. .The effect of this will be to permit the cam to bind more firmly,and to prevent the acci dental disengagement of the latter by thejolting of the car.

The operation is briefly as follows: The sash is raised by taking holdof it in the usual manner. On letting go of it'the downward tion of asash looking or supporting cam, motion causes the cam to roll and bind,as'alwhich has a gravity-handle to control it aureadystated. To lowerthe sash the handle tomatically, and upon its edge or periphery E isturned to assume a vertical position, and a shoulder-stop,to prevent thecam from wedgheld thus until the desired descent has been ing when thesash is raised. accomplished.

My invention furthermore consists in the I do not claim, broadly, as myinvention the combination, with a cam of the peculiar conflanged sleevewhich supports the cam, but, struction referred to, of aflanged sleeve,upon conceding its previous use in other connecwhich said cam works, ascrew securing said tions, merely claim it as an element of alegitisleeve and cam to the sash, with or without mate combination.

To all whom it may concern:

Be it known that I, RICHARD HOLGROFT, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented a certain new anduseful Improved Sash-Holder; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and useit, reference being had to the accompanying drawings, which form part ofthis specification, in whichv Figure 1 is a perspective of my invention.Fig. 2 is a plan of the cam and vertical transverse section of thesleeve and screw. Fig. 3 is a plan view of the cam. Fig. 4 isa verticaltransverse section of my invention.

The object of my inventionis to provide a simple and comparativelyinexpensive device for holding up window-sashes atany altitude, saiddevice being self-acting, and being designed particularly forcar-windows, wherea tendency to drop, occasioned by the jolting of thecar, has to be met and resisted.

My invention consists in the novel construcan elastic strip for the camto impinge upon, What I claim as my invention isall as hereinafter morefully described and 1. The cam A, provided with a gravity-handefinitelyclaimed. dle, E, and shoulder-stop a, substantially as Referring to theaccompanying drawing, A shown and described.

designates a cam of the peculiar form herein- 2. The combination of thecam A, having a after more fully described, having an enlarged shoulder,a, enlarged part a, and gravity-hanopening through which passes asleeve, B, dle E, with the sleeve B,having flange I) and having anannular flange, b. Gisawood-screw, screw 0, with or without theelastic-strip G, passing through the sleeve B into the sash D,substantially as shown and described.

firmly binding said sleeve against said sash, In testimony that I claimthe foregoing and preventing its turning. The distance behave hereuntoset my hand this 11th day of tween the flange b and the sash D is atrifle March, 1876.

more than the thickness of the cam A so as 1 to allow the latter to turneasily on the: sleeve RICHARD HOLUROFT' B. E represents a handle,secured to or form- Witnesses: ing apart of the cam A, servin g,by itsgravity, GEO. O. SHELMERDINE,

to keep the latter so turned that its shortest SAML. J. VAN STAVOREN.

